The prepaid charge for 100 minutes of a telecom service is $$$ 67.40. What is the charge for a minute?

6,740 dollars

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674.0 dollars

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0.674 dollars

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6.74 dollars

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Solution

The correct option is C 0.674 dollars
Charge for 100 minutes = 67.40 dollars

Charge for 1 minute = 67.40 $\div$ 100

To divide a number by 100, we have to move the decimal point two places to the left.

$⟹$ 67.40 $\div$ 100 = 0.6740 dollars

Hence, charge for 1 minute = 0.674 dollars

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